Struct gtk4::FontDialog

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#[repr(transparent)]
pub struct FontDialog { /* private fields */ }
Available on crate feature v4_10 only.
Expand description

A FontDialog object collects the arguments that are needed to present a font chooser dialog to the user, such as a title for the dialog and whether it should be modal.

The dialog is shown with the choose_font() function or its variants. This API follows the GIO async pattern, and the result can be obtained by calling the corresponding finish function, such as Gtk::FontDialog::choose_font_finish().

See FontDialogButton for a convenient control that uses FontDialog and presents the results.

Properties

filter

Sets a filter to restrict what fonts are shown in the font chooser dialog.

Readable | Writeable

font-map

Sets a custom font map to select fonts from.

A custom font map can be used to present application-specific fonts instead of or in addition to the normal system fonts.

Readable | Writeable

language

The language for which the font features are selected.

Readable | Writeable

Whether the font chooser dialog is modal.

Readable | Writeable

title

A title that may be shown on the font chooser dialog that is presented by FontDialog::choose_font().

Readable | Writeable

Implements

glib::ObjectExt

Implementations§

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impl FontDialog

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pub fn new() -> FontDialog

Creates a new FontDialog object.

Returns

the new FontDialog

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pub fn builder() -> FontDialogBuilder

Creates a new builder-pattern struct instance to construct FontDialog objects.

This method returns an instance of FontDialogBuilder which can be used to create FontDialog objects.

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pub fn choose_face<P: FnOnce(Result<FontFace, Error>) + 'static>( &self, parent: Option<&impl IsA<Window>>, initial_value: Option<&impl IsA<FontFace>>, cancellable: Option<&impl IsA<Cancellable>>, callback: P )

This function initiates a font selection operation by presenting a dialog to the user for selecting a font face (i.e. a font family and style, but not a specific font size).

The @callback will be called when the dialog is dismissed. It should call Gtk::FontDialog::choose_face_finish() to obtain the result.

parent

the parent Window

initial_value

the initial value

cancellable

a GCancellable to cancel the operation

callback

a callback to call when the operation is complete

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pub fn choose_face_future( &self, parent: Option<&impl IsA<Window> + Clone + 'static>, initial_value: Option<&impl IsA<FontFace> + Clone + 'static> ) -> Pin<Box_<dyn Future<Output = Result<FontFace, Error>> + 'static>>

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pub fn choose_family<P: FnOnce(Result<FontFamily, Error>) + 'static>( &self, parent: Option<&impl IsA<Window>>, initial_value: Option<&impl IsA<FontFamily>>, cancellable: Option<&impl IsA<Cancellable>>, callback: P )

This function initiates a font selection operation by presenting a dialog to the user for selecting a font family.

The @callback will be called when the dialog is dismissed. It should call Gtk::FontDialog::choose_family_finish() to obtain the result.

parent

the parent Window

initial_value

the initial value

cancellable

a GCancellable to cancel the operation

callback

a callback to call when the operation is complete

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pub fn choose_family_future( &self, parent: Option<&impl IsA<Window> + Clone + 'static>, initial_value: Option<&impl IsA<FontFamily> + Clone + 'static> ) -> Pin<Box_<dyn Future<Output = Result<FontFamily, Error>> + 'static>>

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pub fn choose_font<P: FnOnce(Result<FontDescription, Error>) + 'static>( &self, parent: Option<&impl IsA<Window>>, initial_value: Option<&FontDescription>, cancellable: Option<&impl IsA<Cancellable>>, callback: P )

This function initiates a font selection operation by presenting a dialog to the user for selecting a font.

The @callback will be called when the dialog is dismissed. It should call Gtk::FontDialog::choose_font_finish() to obtain the result.

If you want to let the user select font features as well, use choose_font_and_features() instead.

parent

the parent Window

initial_value

the font to select initially

cancellable

a GCancellable to cancel the operation

callback

a callback to call when the operation is complete

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pub fn choose_font_future( &self, parent: Option<&impl IsA<Window> + Clone + 'static>, initial_value: Option<&FontDescription> ) -> Pin<Box_<dyn Future<Output = Result<FontDescription, Error>> + 'static>>

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pub fn filter(&self) -> Option<Filter>

Returns the filter that decides which fonts to display in the font chooser dialog.

Returns

the filter

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pub fn font_map(&self) -> Option<FontMap>

Returns the fontmap from which fonts are selected, or NULL for the default fontmap.

Returns

the fontmap

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pub fn language(&self) -> Option<Language>

Returns the language for which font features are applied.

Returns

the language for font features

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pub fn is_modal(&self) -> bool

Returns whether the font chooser dialog blocks interaction with the parent window while it is presented.

Returns

TRUE if the font chooser dialog is modal

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pub fn title(&self) -> GString

Returns the title that will be shown on the font chooser dialog.

Returns

the title

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pub fn set_filter(&self, filter: Option<&impl IsA<Filter>>)

Adds a filter that decides which fonts to display in the font chooser dialog.

The Filter must be able to handle both pango::FontFamily and pango::FontFace objects.

filter

a Filter

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pub fn set_font_map(&self, fontmap: Option<&impl IsA<FontMap>>)

Sets the fontmap from which fonts are selected.

If @fontmap is NULL, the default fontmap is used.

fontmap

the fontmap

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pub fn set_language(&self, language: &Language)

Sets the language for which font features are applied.

language

the language for font features

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pub fn set_modal(&self, modal: bool)

Sets whether the font chooser dialog blocks interaction with the parent window while it is presented.

the new value

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pub fn set_title(&self, title: &str)

Sets the title that will be shown on the font chooser dialog.

title

the new title

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pub fn connect_filter_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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pub fn connect_font_map_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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pub fn connect_language_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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pub fn connect_modal_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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pub fn connect_title_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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impl FontDialog

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pub fn choose_font_and_features<P: FnOnce(Result<(Option<FontDescription>, GString, Language), Error>) + 'static>( &self, parent: Option<&impl IsA<Window>>, initial_value: Option<&FontDescription>, cancellable: Option<&impl IsA<Cancellable>>, callback: P )

This function initiates a font selection operation by presenting a dialog to the user for selecting a font and font features.

Font features affect how the font is rendered, for example enabling glyph variants or ligatures.

The @callback will be called when the dialog is dismissed. It should call Gtk::FontDialog::choose_font_and_features_finish() to obtain the result.

parent

the parent Window

initial_value

the font to select initially

cancellable

a GCancellable to cancel the operation

callback

a callback to call when the operation is complete

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pub fn choose_font_and_features_future( &self, parent: Option<&impl IsA<Window> + Clone + 'static>, initial_value: Option<&FontDescription> ) -> Pin<Box_<dyn Future<Output = Result<(Option<FontDescription>, GString, Language), Error>> + 'static>>

Trait Implementations§

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impl Clone for FontDialog

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for FontDialog

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for FontDialog

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Display for FontDialog

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl HasParamSpec for FontDialog

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type ParamSpec = ParamSpecObject

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type SetValue = FontDialog

Preferred value to be used as setter for the associated ParamSpec.
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type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, FontDialog>

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fn param_spec_builder() -> Self::BuilderFn

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impl Hash for FontDialog

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fn hash<H>(&self, state: &mut H)where H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for FontDialog

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fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
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impl ParentClassIs for FontDialog

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impl<OT: ObjectType> PartialEq<OT> for FontDialog

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fn eq(&self, other: &OT) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<OT: ObjectType> PartialOrd<OT> for FontDialog

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fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl StaticType for FontDialog

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fn static_type() -> Type

Returns the type identifier of Self.
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impl Eq for FontDialog

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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Sets the property property_name of the object to value value. Read more
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Sets the property property_name of the object to value value. Read more
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Sets multiple properties of the object at once. Read more
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Sets multiple properties of the object at once. Read more
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Get the type of the property property_name of this object. Read more
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Get the ParamSpec of the property property_name of this object.
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Return all ParamSpec of the properties of this object.
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fn freeze_notify(&self) -> PropertyNotificationFreezeGuard

Freeze all property notifications until the return guard object is dropped. Read more
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Set arbitrary data on this object with the given key. Read more
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Block a given signal handler. Read more
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Unblock a given signal handler.
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Stop emission of the currently emitted signal.
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Connect to the signal signal_id on this object. Read more
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Connect to the signal signal_name on this object. Read more
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Emit signal by its name with details. Read more
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fn emit_with_details<R>( &self, signal_id: SignalId, details: Quark, args: &[&dyn ToValue] ) -> Rwhere R: TryFromClosureReturnValue,

Emit signal by signal id with details. Read more
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fn emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value] ) -> Option<Value>

Emit signal by signal id with details. Read more
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fn disconnect(&self, handler_id: SignalHandlerId)

Disconnect a previously connected signal handler.
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fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + Send + Sync + 'static,

Connect to the notify signal of the object. Read more
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fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + 'static,

Connect to the notify signal of the object. Read more
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unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F ) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec),

Connect to the notify signal of the object. Read more
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fn notify(&self, property_name: &str)

Notify that the given property has changed its value. Read more
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fn notify_by_pspec(&self, pspec: &ParamSpec)

Notify that the given property has changed its value. Read more
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fn downgrade(&self) -> WeakRef<T>

Downgrade this object to a weak reference.
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fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>where F: FnOnce() + Send + 'static,

Add a callback to be notified when the Object is disposed.
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fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>where F: FnOnce() + 'static,

Add a callback to be notified when the Object is disposed. Read more
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fn bind_property<'f, 't, O, 'a>( &'a self, source_property: &'a str, target: &'a O, target_property: &'a str ) -> BindingBuilder<'a, 'f, 't>where O: ObjectType,

Bind property source_property on this object to the target_property on the target object. Read more
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fn ref_count(&self) -> u32

Returns the strong reference count of this object.
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unsafe fn run_dispose(&self)

Runs the dispose mechanism of the object. Read more
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impl<T> Property for Twhere T: HasParamSpec,

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type Value = T

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impl<T> PropertyGet for Twhere T: HasParamSpec,

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type Value = T

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fn get<R, F>(&self, f: F) -> Rwhere F: Fn(&<T as PropertyGet>::Value) -> R,

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impl<T> StaticTypeExt for Twhere T: StaticType,

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fn ensure_type()

Ensures that the type has been registered with the type system.
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for Twhere T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T> TransparentType for Twhere T: TransparentPtrType,

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T> TryFromClosureReturnValue for Twhere T: for<'a> FromValue<'a> + StaticType + 'static,

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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<Super, Sub> CanDowncast<Sub> for Superwhere Super: IsA<Super>, Sub: IsA<Super>,

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impl<'a, T, C, E> FromValueOptional<'a> for Twhere T: FromValue<'a, Checker = C>, C: ValueTypeChecker<Error = ValueTypeMismatchOrNoneError<E>>, E: Error + Send + 'static,